algae

algal

animal

background

beak

beautiful

bird

bloom

blurred

butorides

close

color

destruction

eating

ecosystem

environmental

fertilizer

fingerling

fish

fishing

focus

grass

green

habitat

heron

hunting

isolated

lake

lens

lighting

natural

nature

ornithology

outdoor

phytoplankton

pollution

pond

predator

prey

real

reserve

selective

striated

summer

surface

swamp

telephoto

time

virescens

water

white

wild

wildlife